Arrangement oe catches in the upper sash operated by moving the



N UNITED STATES PATENT oEEIcE. N1

W.` RACE, OF SENECA FALLS, `NFV YORK.

. ARRANGEMENT or csrcHEs IN'rHE UPPER sAsH orERA'rED BY MOVING THE LOWER sAsH. .l

Specification of Letters Patent No. 8,186, dated July 1., 1851.

To `all whom t may concern i Be it known `that I, WASHBURN RACE, of

`Seneca Falls, in the countyof Seneca and State of NewV York, have invented a new `and useful Improvement in Window-Sash a Checks and Fasteners; and I do hereby de- Clare that the following is a full, clear, and exact description thereof, reference `being had to the accompanying drawings, making a part of this specification, Figure `1 being an elevation of a window with both sashes closed, as seen from the inner side; Fig. 2, a vertical section of the same at the red line in Fig. 1, and Fig. 3, a vertical section through the center of a window in which the upper sashis partly lowered and the lower sashpartly elevated.` a

The nature of my invention consists in constructing and arranging the catches which hold up the upper sash of a window in such mannernthat they can be operated to release the upper sash and allo-wait to open,

or to secure this sash in any desired po-sition either open or closed, by means of the lower sash of the window and without applying the hands either to the upper sash or to its catches. y i

In the accompanying drawing A is the upper and B is the lower sash. The lower sash is fitted with a catch d .of any suitable approved construction. a

The uppersash A is'fltted with two catches e, e, whose shorter arms being borne against the center slats g of the window frame, by the weight of their longer arms, engage in suitable notches '11, i, formed in'those center slats. The longer arms of these catches depend below` their` pivots and their positions with respect to the lower sash ofthe window is such that if this sash be shoved upward its top bar will strike the longer arms of the catches of the upper sash and raisingthem will disengage their sho-rter arms from; their notches in the center slats. If then the lower sash be let down slowly the upper sash, being released by theiwithdrawal of its catches from their respective notches, will descend with it. If the descent of the upper `sash is to` be stopped, the `lower sash is moved suddenly downward, by which meansits top bar is drawn away from the longer arms of the upper sash catches, which being no longer supported will turn down by their own gravity and force their respective shorter armsinto the next succeeding notches of the center slats, thus stopping the further descent of the upper sash.

When the upper sash is to be raised the lower sash' isshoved upward; in its upward movement its top bar strikes the upper sash catches and detaches them from their notches; if now the lower sash be moved further, it will carry the .upper sash with it to its uppermost position. The lower sash is then movedsud-denly downward, by which means, as before stated, the upper sash catches. will be allowed to engage lwith their respective notches in the center slats and a thus secure the upper sash in its uppermost upper sash; as twocatches also are employed the sagging of the upper sash is effectually prevented.

What I claim as my invention and desire to secure by Letters Patentis- The arrangement herein describedof the catches and window sashes for the purpose described. f

In testimony whereof I have hereunto subscribedmy name. f

VVASIIBURII` RACE.

Witnesses:

WVM. LANGWORTHY, H. CJSILSBY. 

